"One hundred percent they are interested in putting a casino in Illinois," Hard Rock International Chairman Jim Allen said.

But in spite of recent legislative moves to expand gaming in Illinois, Walker said nothing is certain.

"We went out and had the Division of Gaming and the Department of Administration look at that. The reality is there are no pending applications," Walker said.

Meanwhile, the pressure on the governor to say no continues from the Potawatomi tribe.

"Its connections to the criminal elements, its adverse impacts on Milwaukee, is something we can't support, and he knows it," Potawatomi Attorney General Jeff Crawford said.

Milwaukee Mayor Tom Barrett stressed an issue, first raised in a WISN 12 News report last week, that a loss of revenue at Milwaukee's Potawatomi casino would mean lower payments from the tribe to local government.

"I haven't seen one word about the city or county being compensated if we lose income," Barrett said.

But the Hard Rock chairman is urging the governor to continue to take his time, saying in a statement, "I applaud the thorough approach that Gov. Walker is taking."

As the casino debate plays on, Walker opted out of a public event with the Potawatomi tribe in Milwaukee Monday. The lieutenant governor took his place.

The governor said he will reveal details of the casino issues he is considering in emails "over each of the next few days."

There's no word on when a final decision will come.

A lot has happened in the last month regarding the proposed casino.

On Aug. 23, the U.S. Department of Interior approved the Menominee tribe's application to build the casino, pending the governor's approval.

Right away, several Wisconsin tribes said they were opposed to it.

On Oct. 11, the Menominee tribe announced it was partnering with Hard Rock International, which is owned by the Florida Seminole tribe.

Five days later, the governor met with the Menominee tribe and those against the casino.

On Friday, the governor delayed his decision on the matter, saying he needed more time to look over the proposal.